Braided stent

• US 20070123969A1
• Filed: 01/25/2007
• Published: 05/31/2007
• Est. Priority Date: 07/17/1997
• Status: Abandoned Application

• Current Assignee: Boston Scientific Corporation
• Original Assignee: Schneider (Europe) GmbH (Boston Scientific Corporation)
• Inventors: Gianotti, Marc
• Application Number:
  US11/657,858
• Publication Number:
  US 20070123969A1
• Time in Patent Office: Days
• US Class Current: 623/1.200
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/3011 Cross-sections or two-dimensional shapes
• CPC Class Codes: A61F 2230/0002 Two-dimensional shapes, e.g. cross-sections
• CPC Class Codes: D04C 1/06 Braid or lace serving particular purposes
• CPC Class Codes: D04C 3/48 Auxiliary devices
• CPC Class Codes: D10B 2403/0241 enhancing mechanical properties
• CPC Class Codes: D10B 2509/06 Vascular grafts; stents
• CPC Class Codes: Y10T 29/49874 Prestressing rod, filament or strand

Abstract

A stent for use in a body passageway includes a plurality of wires braided to form a self-expanding braided tubular structure. The braided wires form braiding angles along a length of the tubular structure. A portion of the wires are plastically deformed to reduce foreshortening of the braided structure.

Claims

1-76. -76. (canceled)

77. A stent for use in a body passageway, comprising:

a plurality of wires braided to form a self-expanding braided tubular structure, the braided wires forming braiding angles along a length of the tubular structure;

wherein a portion of the wires are plastically deformed to reduce foreshortening of the braided structure.

78. The stent of claim 77, wherein the braiding angles are obtuse angles.

79. The stent of claim 78, therein the obtuse angles from about 110°

to about 120°

.

80. The stent of claim 77, wherein the wires comprise metallic material.

81. The stent of claim 77, wherein the plastically deformed portion is a bend.

82. The stent of claim 77, wherein the plastically deformed portion is an arched portion.

83. The stent of claim 77, wherein the plastically deformed portion is a smooth curved portion.

84. The stent of claim 77, wherein braided tubular structure has a substantially uniform diameter.

85. The stent of claim 77, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

86. The stent of claim 85, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

87. The stent of claim 81, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

88. The stent of claim 87, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

89. A stent for use in a body passageway, comprising:

a plurality of wires braided to form a self-expanding braided tubular structure, the braided wires forming braiding angles along a length of the tubular structure;

wherein a portion of the wires are plastically deformed to reduce flattening of the braided structure under radial deformation.

90. The stent of claim 89, wherein the braiding angles are obtuse angles.

91. The stent of claim 90, therein the obtuse angles from about 110°

to about 120°

.

92. The stent of claim 89, wherein the wires comprise metallic material.

93. The stent of claim 89, wherein the plastically deformed portion is a bend.

94. The stent of claim 89, wherein the plastically deformed portion is an arched portion.

95. The stent of claim 89, wherein the plastically deformed portion is a smooth curved portion.

96. The stent of claim 89, wherein braided tubular structure has a substantially uniform diameter.

97. The stent of claim 89, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

98. The stent of claim 97, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

99. The stent of claim 93, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

100. The stent of claim 99, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

101. A stent for use in a body passageway, comprising:

a plurality of wires braided to form a self-expanding braided tubular structure, the braided wires forming braiding angles along a length of the tubular structure;

wherein a portion of the wires are plastically deformed to restrict their movement within the braided tubular structure.

102. The stent of claim 101, wherein the braiding angles are obtuse angles.

103. The stent of claim 102, wherein the obtuse angles from about 110°

to about 120°

.

104. The stent of claim 101, wherein the wires comprise metallic material.

105. The stent of claim 101, wherein the plastically deformed portion is a bend.

106. The stent of claim 101, wherein the plastically deformed portion is an arched portion.

107. The stent of claim 101, wherein the plastically deformed portion is a smooth curved portion.

108. The stent of claim 101, wherein braided tubular structure has a substantially uniform diameter.

109. The stent of claim 101, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

110. The stent of claim 101, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

111. The stent of claim 105, wherein the braided structure further comprises a proximal end and a distal end;

and a plurality of plastically deformed portions, wherein the plastically deformed portions are disposed at at least one of the proximal end or the distal end.

112. The stent of claim 111, wherein the plastically deformed portions are disposed at both the proximal end and the distal end.

113. A stent for use in a body passageway, comprising:

a plurality of wires braided to form a self-expanding braided tubular structure, the braided wires forming braiding angles along a length of the tubular structure;

wherein portions of the wires are plastically deformed to provide smooth curved, arched portions.

114. The stent of claim 113, wherein the braiding angles are obtuse angles.

115. The stent of claim 114, therein the obtuse angles from about 110°

to about 120°

.

116. The stent of claim 113, wherein the wires comprise metallic material.

117. The stent of claim 113, wherein the smooth curved, arched portions are bends.

118. The stent of claim 113, wherein the smooth curved, arched portions equidistant from one and another.

119. The stent of claim 113, wherein braided tubular structure has a substantially uniform diameter.

120. The stent of claim 113, wherein the braided structure further comprises a proximal end and a distal end;

and wherein the arched portions are disposed at at least one of the proximal end or the distal end.

121. The stent of claim 120, wherein the arched portions are disposed at both the proximal end and the distal end.

122. The stent of claim 117, wherein the braided structure further comprises a proximal end and a distal end;

and wherein the arched portions are disposed at at least one of the proximal end or the distal end.

123. The stent of claim 117, wherein the arched portions are disposed at both the proximal end and the distal end.